SEO fix guide
JavaScript-Only Navigation Detected
Navigation links rely on JavaScript to render, which may prevent search engine crawlers from discovering and indexing linked pages.
Issue ID: CRAWL-JS-NAV-001
Severity: major
Impact: High
Effort: L
Use this article when
- You need deeper remediation guidance than the issue card can show.
- You want CMS-specific steps before handing the fix to a developer.
- You want a repeatable re-check path after shipping the change.
What this issue is
Navigation links rely on JavaScript to render, which may prevent search engine crawlers from discovering and indexing linked pages.
Why it matters
Navigation links rely on JavaScript to render, which may prevent search engine crawlers from discovering and indexing linked pages. This affects how clearly search engines understand the page and how persuasive it looks in search results.
How we detect it
- FreeSiteAudit flags this issue when the rule for CRAWL-JS-NAV-001 fails and the page evidence points to Dom body.
- You can usually confirm this by checking the page source or the relevant page settings inside your CMS.
Evidence examples
Check the affected page source, rendered output, or relevant CMS setting to confirm the missing or incorrect element.
How to fix it
- 1Use standard <a href="..."> tags for all navigation links
- 2Implement server-side rendering or pre-rendering for JS-heavy sites
- 3Ensure all critical links are in the initial HTML response
How to re-check it
- Disable JavaScript in the browser and confirm all navigation links are still visible and functional
Related tools
This issue is best verified with the full FreeSiteAudit crawl rather than a single-point mini tool.